A cockatoo is
a parrot that is
any of the 21 species belonging to the bird family Cacatuidae, the only family
in the superfamily Cacatuoidea. Along with the Psittacoidea and the
Strigopoidea, they make up the order
Psittaciformes. The family has a mainly Australasian distribution, ranging from the Philippines and the eastern Indonesian islands of Wallacea to New
Guinea, the Solomon
Islands and Australia. Source
